Commercial Acoustics’ standard 4 1/4” thick acoustical panels are designedand pre-engineered to offer an acoustical, thermal, air-tight, and self-supportingHVAC plenum or equipment enclosure with easy job-site installation. Superiorfeatures include all G90 galvanized steel and welded construction andindependent laboratory testing to insure performance.

AcousticalPanels for

HVAC Plenums and Equipment Enclosures

Acoustical Panel

ENGINEERING DATA SHEET

Commercial Acoustics

5960 W. WASHINGTON ST.PHOENIX, ARIZONA 85043-3523(602) 233-2322 FAX 233-2033

A DIVISION OF METAL FORM MANUFACTURING

OPTIONS

CONSTRUCTION

• Tongue & Groove• Mylar, Polyethylene, or Fiberglass Cloth Lining• Framed Cutouts/Openings• Primer or Finish Paint• Different Gauge Construction• Different Material Construction; i.e. Stainless Steel• Special Configurations: Perf/Perf, Solid/Sloid, Perf/Solid/Perf• Different Insulation Materials and Densities

Commercial Acoustics’ standard Acoustical/Thermal Panels arefabricated with an 18 gauge G90 galvanized solid steel outerskin with 16 gauge galvanized solid steel channel frames, filledwith mineral-glass fiber acoustic/thermal fill, and protected byan inner skin which consists of a 22 gauge G90 galvanizedperforated steel sheet which has 23% open area (3/32” holeson 3/16” staggered centers).

ACOUSTICAL PERFORMANCE* - Standard Construction

TRANSMISSION LOSS (ASTM E90-81)

SOUND ABSORPTION COEFFICIENTS (ANSI?ASTM C423-81a AND E795)

*All Acoustical tests were performed and reported by an Independent Accredited Acoustical Laboratory. Copies of thetest reporst can be furnished upon request.

22 29 40 48 54 60 4121 24 35 43 52 57 37

STC

2 1/4" PANEL (TL in dB)

125 250 500 1K 2K 4K4 1/4" PANEL (TL in dB)

OCTAVE BAND CENTERFREQUENCY (HZ)

0.86 1.09 1.22 1.06 1.05 1.04 1.10.31 0.82 1.19 1.12 1.07 1.06 1.11

NRC

2 1/4" PANEL

125 250 500 1K 2K 4K4 1/4" PANEL

1/3 OCTAVE BANDCENTER FREQUENCY

ACOUSTICAL PERFORMANCE* - Non-Standard Construction

28 38 46 49 54 62 4822 30 42 49 54 61 42

27 36 48 53 55 57 49

A (TL in dB)

OCTAVE BAND CENTERFREQUENCY (HZ) STC

C (TL in dB)

B (TL in dB)

125 250 500 1K 2K 4K

0.25 0.37 0.64 0.6 0.56 0.29 0.550.8 0.79 1.07 0.95 0.91 0.83 0.95

NRC

B

125 250 500 1K 2K 4KA

1/3 OCTAVE BANDCENTER FREQUENCY

A. Standard Panel Construction with the addition of a 1 mil Mylar protective liner between the acoustical/ther-mal fill and the perforated face sheet.

B. Standard Panel construction with the standard acoustical/thermal fill replaced by an 8 pcf rigid insulation.

C. Industrial Panel construction as follows: 14 gauge G 90 galvanized solid steel outer skin with 16 gauge G90galvanized solid steel frame. The coustical/thermal fill is 8 pcf rigid insulation board sealed with a 1 mil Mylar lining.The inner skin is 22 gauge G90 galvanized perforated steel with 23% open area.

TRANSMISSION LOSS (ASTM E90-81)

SOUND ABSORPTION COEFFICIENTS (ANSI/ASTM C423-81a AND E795)

*All Acoustical tests were performed and reported by an Independent Accredited Acoustical Laboratory. Copies of thetest reporst can be furnished upon request.

THERMAL PERFORMANCE

Individual panels will have a “U” Factor of 0.07 and an entire panel plenum will have a “U” factor of 0.14.

FIRE HAZARD RATING

Standard acoustical fill will have the following UL Fire Hazard Ratings as per ASTM E-84:

• FLAME SPREAD - 15• FUEL CONTRIBUTED - 0• SMOKE DEVELOPED - 0

STRUCTURAL PERFORMANCE

The entire panel plenum shall be self-supporting and air-tight up to a pressure differential of 10 inch WaterGauge. When needed, additional structural support can be provided to assure that the plenum will be air-tightand not deflect more than 1/240th of the longest span.

FEATURES

• ALL TRIM IS 16 GAUGE SOLID STEEL FURNISHED IN 10 FOOT LENGHTS FOR EASE OF INSTALLATION.• ALL STRUCTURAL STEEL, WHERE SUPPLIED BY COMMERCIAL ACOUSTICS, WILL HAVE A PRIME COAT PAINT APPLIED AT THE FACTORY.• COMMERCIAL ACOUSTICS FURNISHES ALL NECESSARY DRAWINGS FOR APPROVAL AND ERECTION AS WELL AS ANY STRUCTURAL AND OR SEISMIC CALCULATIONS AS REQUIRED.• ALL FASTENERS ARE ZINC PLATED, SELF-DRILLING, SELF-TAPPING SHEET METAL SCREWS.• COMMERCIAL ACOUSTICS OFFERS THE OPTION OF EITHER PANEL CONNECTOR OR TONGUE & GROOVE PANEL CONSTRUCTION.

Commercial Acoustics

5960 W. WASHINGTON ST.PHOENIX, ARIZONA 85043-3523(602) 233-2322 FAX 233-2033

A DIVISION OF METAL FORM MANUFACTURING

ComponentsStandardLengths

UnitWeight

Application Notes

Floor Channel(FC)

Used for joining panels tofloors or walls. Used for

capping exposed ends of walland floor panels. Also used to

trim rectangular cutouts.

16 GA1.5 lbs./ft.

Inside Angle (IN)

Ceiling Cap (CC)

Wall Corner (WC)

Section Details

Panel Connector(PC)

2"x4" Rect. Tubing(RT)

Outside Angle(OA)

Used for joining wall and/orroof panels when additionalstructural rigidity is required.

120"

120"

120"

120"

96"120"

96"120"144"

Length asrequired

Used for trimming outsideroof and outside vertical

corners

Used for trimming insidevertical corners. Also used toseal duct penetrations and to

join removable panels tofloor.

16 GA0.9 lbs./ft.

16 GA3.3 lbs./ft.

16 GA3.1lbs./ft.

Used for joining wall and roofpanels.

Used for joining walls to roof.Also wall corners.

Alternate method of joiningwalls at corners.

1.8 lbs./ft.

ConsultFactory

A. Concrete inserts arefurnished by others.

B. Field cut and mitercorners to suit.

Field cut and miter cornersto suit.

Field cut and miter cornersto suit.

Field cut and miter cornersto suit.

Field cut and miter cornersto suit.

For load limitations &alternate structural steel

substitutions, consultfactory.

For load limitations &alternate structural steel

substitutions, consultfactory.

16 GA1.8 lbs./ft.

TRIM AND ACCESSORY ENGINEERING DATA